Vaporizer for hydrocarbon-engines.



PATENTED JULY l0, 1906.

C. P. PEARSON.

VAPORIZER FOR HYDROCARBON EN GINES.

APPLICATION FILED AUG. 3.1904.

. ATTURNEYS thereof.

UNITED STATES PATENT onirica.

- Specification of Letters Patent.

` Patented July 10, 1906;V

Application ned August s, 1904.r serai No. 219.381.

To all whom t may concern: Be it known that I, CARL F. PEARsoN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented a new and Improved Va orizer for Hydrocarbon Engines, .of which the following is a full, clear, and exact description.

While my invention is especially intended for hydrocarbon-engines, it may be employed 'mother ways, as will be apparent to persons skilled in the art. p The present invention constitutes an improvement in the type of vaporizer disclosed in my prior patent, No. 737,463, granted Au st 25, 1903.

he special object of the present improvement is to provide means for effectively regulating the vaporizer so as to increase and diminish the su ply of fuel, this regulation taking place without, however, affecting the uniformity of the fuel mixture supplied to the engine.

Reference is had to the accompanying drawings, illustratin as an example the referred embodiment o the invention, in w 'ch ldrawings like numerals of reference indicate like parts in the' several views, and in which- Figure 1 is a vertical section taken through the vaporizer substantially on the line l 1 in Figs. 2 and 3. Fig. 2 is a rear side elevation Fig. 3 is a plan view thereof. Fig. 4 is a section on the line 4 4 of Fig. 1, illustrating the rear inlet-valve. Fig. 5 is a section on the line 5 5 of Fig. 1, illustrating the miXture-valvepand Figi 6 is an elevational view of the rear inlet-valve, showing particularly the formation of the V-port therein.

10 indicates the iioathamber, provided with aninlet 11, commen' ed by a ball-valve 12. Said valve is actuated by an elbow-lever 14, engaged b a nut 15. Said nut is ad- ]ustably mounte on the threaded stem 16, which stem in turn is attached to the loat/ 17 T he float'has an interior guide 18, receiving a pin 19, rising from the bottom of the floatchamiber 10. In this manner the hei ht of the liquid fuel within theiloat-cham erk is automatically regulated, as will be fully understood from the prior art.

20 indicates tubular walls, which, as here shown, are formed integral with the floatchamber and vwhich form the air-passage leading to the engine or other apparatus in connection with which the vaporizer is employed.-

21 indicates a nozzle which communicates with the bottom part of the float-chamber 10 4and discharges into the central part of the form baflie 24, jwhich serves, essentially, the

function served' by the baiile designated c in my prior patent before referred to, the nozzle 21 discharging dia onally into the lspiral,

baiile, as shown. T 's baffle is attached to a stem 25, which is formed with an. oset 25,

allowing the stem to be turnedlfreely in the passage 20 without enga ement with the nozzle 21. At its lower en the stein 25 carries a spider 26, adjustably fastened thereto by means of set-screw 27. This spider is provided at its upper portion with a valveseat 28 and above the same with a cylindrical valve 29. The valve-seat 28 coacts with a circular check-valve 30, slidably mounted on the stem 25 and opening into-the rear passa e, and the cylindrical valve 29 is formed wit a V-shaped opening or port 29,

(see Fig. 6,) 'which coacts with the air-inletl 31, formed in the walls'20 at a the valve29. The upper portion of the walls 20 carries point opposite an adjustable hood 32, having a nipple 33, y

adapted to eiect connectionwith the .engine communication.yv This hood 32 is adjustable on the walls 20 to'allow the va orizer to be placed in any desired osition with respect to the engine. Within t e hood 32 is arranged a cylindric valve 34 having a port 34a. (See Fig. 5.) Said valve 34 is provided with a tubular extension 34" enga g the s uared portion 25b of the stem 25, w ereby to the valve to the stem. 35 indicates a handle also engaged with the said squared portion of the stem, and 36 indicates a thumb-nutfor locking the handle 35 against an arm 37, which is engaged with the said squared portion 25b .of the stem. The arm 37 carries a set-screw 38, which is arranged to enga e a stop 39 on the hood 32, so as tolimit the c osing movement of the handle 35, stem 25, and the attached parts.

, The'operation of the apparatus may be traced as follows: Assuming the valve 22 to be open and the valves 29 and 34 turned so IOO and 33, suction exerted through t e aix-passage will cause air to be drawn in through the 0 enin 31 and ort 29a and also through t e splder 26, hfting the check-valve 30. The liquid fuel rising in the nozzle 31 Will lie inthe mouth thereof, and the air in assing through the passage 20 will draw o a portion of this fuel, and as the fuel and air ass through the spiral baie 24 the fuel Wi be thoroughly atomized and mingled with the air, forming a combustible va or which passes to the engine and is treate therein in a manner which will be understood.- When the parts are in the above-described adjustment, the maximum quantity of air is drawn through the vaporizer and the maximum quantity of fuel is vaporized, thus allowing the vaporizer to operate at its highest speed. If it is desired to reduce the speed of the engine by the reduction of the fuel supplied thereto, this may be effected by adjusting the valve 29 so that the V-port 29E. therein is gradually moved out of registry with the air-inlet 31, thus cutting down the air-supply pro ortiona-te to the movement ofthe valve, an as said air-supply is cut downa conseuent diminution 1n the amount of fuel withrawn from the nozzle 21 takes place, and therefore the engine is supplied with less fuel and its speed is necessarily reduced. During this operation the port 34a moves out of registry with the opening 33 in proportion to thel correspondin movement of the port 29. When the va ves 29 and 34 are open andthe engine is operatin normally, the valve 30 is seated; but shoul theivalves29 and 34 be moved to partly-closed position lthe suction exerted in the passage 2() will cause the valve 30 to lift, thus preventing drawing excessive fuel `from the nozzle 21. When the engine slows down and the suction decreases, the valve 30 falls back to itsv seat and the operation becomes normal again-i.. e. is drawn exclusively from the port 29a. The setscre'w 38 should be adjusted to limit the closing movement of tha valves 29 and 34, so .that they'will be allowed to move only to nearly closed osition as contradistinguished from vto abso utely closed osition. These various o erations of the va ves may be best vbrou ht a out by manipulation of the handle 35, w 'ch is rovided for this purpose.

Various c anges in the form, proportions, and minor details of my inventlon mag be om resorted to at will without departing the s irit and scope thereof. Hence I consider myseilf entitled to all such variations as may lie Within the terms of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A vaporizer comprising Walls forming an air-passage, and anoill-passage dischargan air-passage and a liquid-fuel passage leading thereinto, a spiralbafle located in the airpassage, a stem connected with the baflie and extending outside of the vaporizer, means in connection with the stem, to facilitate theo eration thereof, and a valve controlling t e air movement and having connection with said stem. f

4. A Wap'orizer comprising walls forming an air-passage and a li uid-fuelpassage discharging thereinto, sai air-passa e having an open end and a laterally-dispose air-inlet, a valve commanding the laterally-disposed inlet and 'situated within-the said o en end, and an automatically-operated va ve controlling an opening through the first-named valve.

5. A vaporizer ccmprisinglwalls' forming an air-passage, said passage aving an'o en end and a laterally-disposed air-port a jacent to the open end, a stem located in the said passage, a s ider connected to the stem' and carrying a cy indric valve and valve-seat, the cylindric valve commanding the said laterally-dis osed air-inlet, and an inwardlyopening c eck-valve coacting with the seat and mounted on the stem.

6. A vaporizer comprising walls forming an air-passage` and a liquid-fuel passa e leading thereinto, having `air inlet an outlet openings, a valve commanding each opening,y a connection between the two valves,-to operate them in unison, and an auton'iatically-operated check-valve vcontrolling an auxiliary air-inlet and o erating independently of the first-named va ves.

7. -A'vaporizer comprisin Walls forming an air-passage and a liquidel passage discharging thereinto, and means controlling the air-supply to said passage, said means comprising an adjustable valve commanding the main air-supply and an automaticallyoperative valve carried ,by the first-named .valveand commanding an auxiliary air-supply IIC

8. A vaporizer comprisiner Walls forming l an air-passage and a li uidel passage discharging thereinto, an a means controlling the air-supply to said passage, said means comprising an adjustab e .valve with a as- `sage through it and a port in its side lea g to the passage, the valve coacting with said name to this specification in the presence of Wals to oontol the main air-sipply thi'ouh two subscribing Witnesses.

sai ort, an an automatic va ve carrie the st Valve outward of the port therei 'CARL F PEARSION 5 and controlling an auxiliary air-supply Witnesses:

through said passage in the first valve. GUS E. JOHNSON,

' In testimony whereof I have signed my MAURICE TALEN. 

